Interactive multiplication table. How to optimize this code (reduce the number of lines)?

<!DOCTYPE html> <html> <head> <title>Π’Π°Π±Π»ΠΈΡ†Π° умноТСния 2</title> <meta charset="utf-8"> </head> <body> <script> alert ('Π˜Π½Ρ‚Π΅Ρ€Π°ΠΊΡ‚ΠΈΠ²Π½Π°Ρ Ρ‚Π°Π±Π»ΠΈΡ†Π° умноТСния. Π”ΠΎΠ±Ρ€ΠΎ ΠΏΠΎΠΆΠ°Π»ΠΎΠ²Π°Ρ‚ΡŒ!'); var a; a = prompt ('Π’Π²Π΅Π΄ΠΈΡ‚Π΅ наимСньший ΠΌΠ½ΠΎΠΆΠΈΡ‚Π΅Π»ΡŒ:'); if (a == 1) { var i = 1; while (i < 10) { alert("1*" + i + "=" + (1*i)); i++; } } if (a == 2) { var i = 2; while (i < 10) { alert("2*" + i + "=" + (2*i)); i++; } } if (a == 3) { var i = 3; while (i < 10) { alert("3*" + i + "=" + (3*i)); i++; } } if (a == 4) { var i = 4; while (i < 10) { alert("4*" + i + "=" + (4*i)); i++; } } if (a == 5) { var i = 5; while (i < 10) { alert("5*" + i + "=" + (5*i)); i++; } } if (a == 6) { var i = 6; while (i < 10) { alert("6*" + i + "=" + (6*i)); i++; } } if (a == 7) { var i = 7; while (i < 10) { alert("7*" + i + "=" + (7*i)); i++; } } if (a == 8) { var i = 8; while (i < 10) { alert("8*" + i + "=" + (8*i)); i++; } } if (a == 9) { var i = 9; while (i < 10) { alert("9*" + i + "=" + (9*i)); i++; } } </script> </body> </html>

    1 answer 1

     alert ('Π˜Π½Ρ‚Π΅Ρ€Π°ΠΊΡ‚ΠΈΠ²Π½Π°Ρ Ρ‚Π°Π±Π»ΠΈΡ†Π° умноТСния. Π”ΠΎΠ±Ρ€ΠΎ ΠΏΠΎΠΆΠ°Π»ΠΎΠ²Π°Ρ‚ΡŒ!'); var a = +prompt ('Π’Π²Π΅Π΄ΠΈΡ‚Π΅ наимСньший ΠΌΠ½ΠΎΠΆΠΈΡ‚Π΅Π»ΡŒ:'); if (a >= 1) { var i = a; while (i < 10) { console.log(a + "*" + i + "=" + (a * i)); i++; } }

    • one
      Even shorter: if (a >= 1) for (var i = a; i < 10; i++) console.log(`${a} * ${i} = ` + (a * i)); - greg zakharov